function check_resolution() {
	//array aus IDs die ausgeblendet werden sollen
	var array = new Array('wrapper');
	var obj;
	var content = document.getElementById('content');
	if (document.body.offsetHeight < 768) {
		 for(i = 0; i < array.length; i++) {
		  	obj = document.getElementById(array[i])
			  if(obj)
				     obj.style.height= '100%';
		 }
	 }else {
		  for(i = 0; i < array.length; i++) {
		   	obj = document.getElementById(array[i])
			  if(obj)
				   obj.style.height= '90%';
				   content.style.bottom = '24px';
		  }
	 }
}
window.onresize = window.onload = check_resolution;



function displayStartPicNav() {
	for (i=0; i< startpics.length; i++) {
		document.getElementById(startpics[i]).onload = function() { document.getElementById(this.id+"_nav").style.display = "block"; }
	}
}

function changeStartPic(identification) {
	startsujetdiv = document.getElementById('startsujets');
	sujets = document.getElementById('startsujets').getElementsByTagName('IMG');
	links = document.getElementById('startsujets').getElementsByTagName('A');
	for (i=0; i<sujets.length; i++) {
		if (sujets[i].className == "startpics") {
			sujets[i].style.display = 'none';							  
		}
		if (links[i]) {links[i].style.display = 'none';}
	}
	document.getElementById('startpic_'+identification).style.display = 'block';
	document.getElementById('startpic_'+identification+'_link').style.display = 'block';
}



function getAdr(prefix, postfix, text) {
	document.write('<a href="mailto:' + prefix + '@' + postfix + '">' + (text ? text : prefix + '@' + postfix) + '</a>');
}

function swapImage(element, newimage) {
	var oldsrc = element.src
	element.src = newimage
	if (!element.onmouseout)
		element.onmouseout = function (event) { swapImage(this, oldsrc); };
}


function hideSelectBoxes(){
	selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) { selects[i].style.visibility = "hidden";}

	if(!window.ie)
		document.getElementById('content').style.overflow='hidden';
}

function showSelectBoxes(){
	selects = document.getElementsByTagName("select");
	for (i = 0; i != selects.length; i++) { selects[i].style.visibility = "visible";}

	if(!window.ie)
		document.getElementById('content').style.overflow='auto';
}


var popupOldOnResize = window.onresize;
var popupOldOnLoad = window.onload;

function showPopup(id, width, height) {
	hideSelectBoxes();
	if(document.getElementById('popup_background')) {
		objTemp = document.getElementById('popup_background');
	}
	else {
		objTemp = document.createElement("div");
		objTemp.id = 'popup_background';
		objTemp.style.visibility='hidden';
	}

	objTemp.style.display='block';

	popupBackground = document.body.appendChild(objTemp);
	$(popupBackground).effects({
		duration:400,onComplete:function(){
			$(popupBackground).effects({}).set({'opacity':[0.5]}); showPopupContent(id, width, height);
		}
	}).start({'opacity':[0,0.5]});
}





function showPopupContent(id, width, height) {
	if (document.getElementById('popup_content')) {
		objTemp = document.getElementById('popup_content');
	} else {
		objTemp = document.createElement("div");
		objTemp.id = 'popup_content';
	}

	splitContent = document.getElementById(id).innerHTML.split('getAdr("');
	for(i=1;i<splitContent.length;i++) {
		emailSplit = splitContent[i].split('", "');
		document.getElementById(id).innerHTML = document.getElementById(id).innerHTML.split('<script type="text/javascript">').join('<a href="mailto:'+emailSplit[0] + '@' + emailSplit[1] + '">' + emailSplit[0] + '@' + emailSplit[1] + '</a><span style="display: none">');

		document.getElementById(id).innerHTML = document.getElementById(id).innerHTML.split('</script>').join('</span>');
	}

	objTemp.innerHTML= '<div id="popup_close"><a href="javascript:popupClose()"><span>X</span></a></div><div id="popup_text">' + document.getElementById(id).innerHTML + '</div>';

	if (width > 0 && height > 0) {
		objTemp.style.width=width+'px';
		objTemp.style.height=height+'px';
		objTemp.style.marginLeft='-' + Math.floor(width/2) +'px';
		objTemp.style.marginTop='-' + Math.floor(height/2) +'px';
	}

	objTemp.style.display='block';

	popupContent =  document.body.appendChild(objTemp);
}

function popupClose() {
	popupContent = document.getElementById('popup_content');
	popupContent.style.display='none';
	popupBackground = document.getElementById('popup_background');

	$(popupBackground).effects({
		duration:400,onComplete:function(){
			popupBackground.style.display='none'; showSelectBoxes();
		}
	}).start({'opacity':[0.5,0]});
}

function popup(url, typ, para1, width, height) {
	attrib = "";
	Y = (screen.height - width) / 2;
	X = (screen.width - height) / 2;
	X = Math.round(X);
	Y = Math.round(Y);
	if (para1 == 'CENTER') attrib += 'height=' + height + ',width=' + width + ',top=' + Y + ',left=' + X;
	if (typ == 'TYP1') attrib += ",scrollbars=no";
	if (typ == 'TYP2') attrib += ",scrollbars=yes";
	if (typ == 'TYP3') attrib += ",scrollbars=yes,menubar=yes";
	x = Math.random();
	fenster = window.open(url, 'win', attrib);
	return false;
}




// deletes leading and trailing spaces in a string - adds the function directly to the String Object, so that all strings inherit this method
String.prototype.trim = function() {
    return this.replace(/(^\s*)|(\s*$)/g, '');
}

//checkEmail - needed for forms
function checkEmail(val) {
	if (val) {
		var usr = "([a-zA-Z0-9][a-zA-Z0-9_.-]*|\"([^\\\\\x80-\xff\015\012\"]|\\\\[^\x80-\xff])+\")";
		var domain = "([a-zA-Z0-9][a-zA-Z0-9._-]*\\.)*[a-zA-Z0-9][a-zA-Z0-9._-]*\\.[a-zA-Z]{2,5}";
		var regex = "^"+usr+"\@"+domain+"$";
		var myrxp = new RegExp(regex);
		var check = (myrxp.test(val));
		if (check!=true) {
			return false;
		}
		else {
			return true;
		}
	}
}

/*
validates formfields if they have a value or not
to check for other options do the following
specialfields = new Object();
specialfields.fieldname = new Object();
specialfields.fieldname.check1 = 'function_to_call,error_message';
specialfields.fieldname.check2 = 'second_function_to_call,second_error_message';
specialfields.another_fieldname = new Object();
specialfields.another_fieldname.check1 = 'function_to_call,error_message';
*/
function validateForm(form,specialfields) {
	var errors = new Array();
	var fields = form.getElementsByTagName('label');
	for (i = 0; i < fields.length; i++) {
		var span = fields[i].getElementsByTagName('span')[0];
		if (span) {
			var label = span.firstChild.data;
			label = label.trim();
			// if there is a '*' in the label - this indicates the inputfield has to be filled
			if (label.charAt(label.length - 1) == '*') {
				label = label.substring(0, label.length - 1).trim();
				// get the inputfield
				var obj_input = fields[i].getElementsByTagName('input');
				if (!obj_input[0])
					obj_input = fields[i].getElementsByTagName('select');
				if (!obj_input[0])
					obj_input = fields[i].getElementsByTagName('textarea');

				// if there is an inputfield
				if (obj_input && obj_input[0]) {
					input = obj_input[0];
					error = false;
					
					// check if the inputfield has a value
					if (!input.value || input.value.trim().length==0) {
						error = true;
						errors.push(label + ' nicht eingegeben');
					}
					
					// check the inputfield for special things (email, ...)
					if (!error && specialfields[input.name]){
						specialfield = specialfields[input.name];
						for (check in specialfield){
							check_function = specialfield[check].split(',')[0];
							check_message = specialfield[check].split(',')[1];
							if (!eval(check_function)(input.value)){
								error = true;
								errors.push(label + ' ' + check_message);
							}
						}
					}

					// on error give the label the className 'error' otherwise delete the className 'error' (if exists)
					if (error) {
						className = fields[i].className;
						if (className.length>0){
							className = className + ' ';
						}
						fields[i].className = className + 'error';
					} else {
			            	className = fields[i].className;
						if (className.indexOf('error')>-1){
								className = className.replace(' error', '');
								className = className.replace('error', '');
								fields[i].className = className;
						}
					}
				}
			}
		}
	}

	return errors;
}

function showFormErrors (errors) {
	error_message = '';
	for (i=0;i<errors.length;i++){
		error_message += errors[i] + '\n';
	}
	alert(error_message);
}
		


/*-- Leistungsübersicht --*/

function activateServiceOfferings(element) {
	oldClass = element.className;
	element.className = oldClass+' active';
	if (!element.onmouseout) {
		element.onmouseout = function (event) { element.className=oldClass; };
	}
}


				 


/*-- events selection --*/

	function init_events() {
		var form_events_selections_obj = document.getElementById('form_selections');
		if (form_events_selections_obj) {
			form_events_selections_obj.getElementsByTagName('button')[0].style.display = 'none';
			selects = form_events_selections_obj.getElementsByTagName('select');
			for(i=0; i<selects.length; i++) {
				selects[i].onchange = events_selections_change;
			}
		}
	}
	
	function events_selections_change() {
		var urlparm = '?';
		var form_selections = document.getElementById('form_selections');
		var selects = form_selections.getElementsByTagName('select');
		for(i=0; i<selects.length; i++) {
			urlparm += selects[i].name + '=' + selects[i].value;
			if (i!=selects.length-1) {
				urlparm += '&';
			}
		};
		location.href=urlparm;
	}



	var doomreadywaiter = window.setInterval(function() {
		if (document.body && document.getElementById('content')) {
			window.clearInterval(doomreadywaiter);
			doomready();
		}
	}, 100);
	function doomready() {
		init_events();
	} 	

						 
	
	



/*LAUFTEXTE*/
function drawMarqueeBegin() {
	document.write('<marquee scrolldelay="80" scrollamount="3" style="height: 20px; line-height: 20px">');
}

function drawMarqueeEnd() {
	document.write('</marquee>');
}

	$(function(){
		

        
        if($('.accordion').length) {
            $('.accordion').accordion({ autoheight: false, active: false, alwaysOpen: false, header: 'h3.toggler' });
        }
    

     

	});